What audio is available in the Instant Join app?
The Instant Join app allows you to use any audio options that are provided by the organizer, including computer audio (VoIP), toll or toll-free phone numbers, or their own third-party conference call service.
In order to access all available audio features, you should use Google Chrome. If you use another web browser, then some options (e.g., Computer audio) will not be available to you.
See How do I connect to the audio? (Instant Join App) to learn more.